'In the Spirit' in the Bible

The same was informed in the way of the Lord, and he spake fervently in the spirit, and taught diligently the things of the Lord, and knew but the baptism of John only.

After these things were ended, Paul purposed in the spirit, to pass over Macedonia and Achaia, and to go to Jerusalem, saying, "After I have been there I must also see Rome."

And now, behold, I go bound in the spirit unto Jerusalem, and know not what shall come on me there,